CN103212600A - Manufacture method of inner sleeve - Google Patents

Manufacture method of inner sleeve Download PDF

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Publication number
CN103212600A
CN103212600A CN2013101321950A CN201310132195A CN103212600A CN 103212600 A CN103212600 A CN 103212600A CN 2013101321950 A CN2013101321950 A CN 2013101321950A CN 201310132195 A CN201310132195 A CN 201310132195A CN 103212600 A CN103212600 A CN 103212600A
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CN
China
Prior art keywords
blanks
moulds
blank
diameter
blind hole
Prior art date
Application number
CN2013101321950A
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Chinese (zh)
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CN103212600B (en
Inventor
张金清
詹朝晖
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宁波安拓实业有限公司
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Priority to CN201310132195.0A priority Critical patent/CN103212600B/en
Publication of CN103212600A publication Critical patent/CN103212600A/en
Application granted granted Critical
Publication of CN103212600B publication Critical patent/CN103212600B/en

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Abstract

The invention provides a manufacture method of an inner sleeve. The inner sleeve is a part in a shock damping system used under an automobile engine. The inner sleeve has the appearance that a main body is tubular, two port parts of a center through hole of the main body are provided with two symmetric flat grooves. The manufacture method provided by the invention comprises the following steps of: manufacturing a billet raw material into a wire rod material, then carrying out phosphate surface treatment on the wire rod material, carrying out fine drawing and sizing, wherein the diameter of the wire rod material subjected to fine drawing and sizing is slightly less than the outer diameter of the inner sleeve; and producing a high-performance automobile part with larger deformation, high precision and complex shape by adopting a multi-station cold extruding and forming process. According to the manufacture method, raw materials are nearly not wasted in a manufacture process, thus the raw materials are saved, the cost is lowered, the production efficiency is increased, the mechanical property of the inner sleeve is improved, the precision is high and the quality of the inner sleeve is ensured.

Description

The manufacturing process of cover in a kind of
Technical field
The present invention relates to a kind of manufacturing process of conical sleeve.
Background technology
Interior cover is the parts in the suspension system that is used under the automobile engine, and the profile of interior cover is: main body is tubular, and the two ends oral area of its central through hole has two sections flat grooves of symmetry.Although the central through hole main body is a circular hole, its head has flat groove, and its endoporus is the irregularly-shaped hole of difficult manufacturing.Make whole conical sleeve adopt relatively difficulty of cold extrusion manufacturing.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of manufacturing process of interior cover, adopt multi-location cold extruding forming technology, produce that deflection is big, the high and complex-shaped high-performing car spare and accessory parts of precision, almost free of losses of raw material in process, not only saved raw material, reduced cost, enhance productivity and mechanical performance of products, and the precision height has been guaranteed the quality of product.For addressing the above problem, technical scheme of the present invention is as follows:
Steel billet materials is made dish circle material, carry out the phosphate surface treatment to coiling the circle material then, essence is taken out sizing processing, and it is more smaller than the external diameter of interior cover that essence is taken out the diameter of the dish circle material behind the sizing, may further comprise the steps afterwards:
(1), dish circle material that essence is taken out behind the sizing delivers in the multi-station cold-heading molding machine drawing-inroller, cuts into single interior sleeve blank spare automatically by the blank mould;
(2), the interior sleeve blank spare that utilizes mechanical clamp to cut is delivered to No. 1 die orifice of multi-functional position cold-heading molding machine, the tool that dashes by No. 1 mould heads into the blank of interior cover in the die of this mould, exert pressure dashing on the tool of No. 1 mould, carrying out cold extrusion handles, front end leveling with the blank of interior cover, the bottom flattens and extrudes lead angle in edge, forms No. 1 blank;
(3), No. 1 blank is utilized 180 ° of mechanical clamp upsets, move on to the die orifice of No. 2 moulds, the tool that dashes by No. 2 moulds heads into No. 1 blank in the die of No. 2 moulds, exert pressure dashing on the tool of No. 2 moulds, carry out cold extrusion shaped processing, No. 1 blank front end in No. 2 moulds is gone out first locating hole, the bottom is gone out second locating hole and is extruded lead angle in edge, and slightly shorten the length of No. 1 blank and slightly enlarge the blank diameter No. 1, form No. 2 blank;
(4), utilize mechanical clamp to move to the die orifice of No. 3 moulds No. 2 blanks, the tool that dashes by No. 3 moulds heads into No. 2 blanks in the die of No. 3 moulds, exert pressure dashing on the tool of No. 3 moulds, carry out cold extrusion shaped processing, on the basis of described first locating hole, go out first blind hole, and prolong blank No. 2, make its length longer than No. 1 blank, the diameter of first blind hole is consistent with the diameter of the central through hole of interior cover, slightly enlarges the blank diameter simultaneously No. 2, forms No. 3 blank; The degree of depth of first blind hole arrives the middle part of No. 3 blanks;
The increasing diameter dosage that the increasing diameter dosage that No. 3 blanks are compared No. 2 blanks is compared No. 1 blank than No. 2 blanks is little;
(5), No. 3 blanks are utilized 180 ° of mechanical clamp upsets, move on to the die orifice of No. 4 moulds, the tool that dashes by No. 4 moulds heads into No. 3 blanks in the die of No. 4 moulds, exert pressure dashing on the tool of No. 4 moulds, carry out cold extrusion shaped processing, No. 3 blanks are gone out second blind hole on the basis of described second locating hole, and slightly prolong the length of No. 3 blanks and increase the blank diameter No. 3, second blind hole and first blind hole are isometrical coaxial, hole diapire between first blind hole and second blind hole is thick to be satisfied towards the iron filings requirement, forms No. 4 blank;
The increasing diameter dosage that the increasing diameter dosage that No. 4 blanks are compared No. 3 blanks is compared No. 2 blanks than No. 3 blanks is little;
(6), utilize mechanical clamp to move to the die orifice of No. 5 moulds automatically No. 4 blanks, the tool that dashes by No. 5 moulds heads into No. 4 blanks in the die of No. 5 moulds, exert pressure dashing on the tool of No. 5 moulds, carry out cold extrusion shaped processing, the flat groove at cover central through hole two ends in the oral area both sides of the oral area both sides of first blind hole of No. 4 blanks and second blind hole are gone out, and the length that slightly prolongs No. 4 blanks forms No. 5 blank to the length of interior cover and slightly enlarge the blank diameter No. 4;
The increasing diameter dosage that the increasing diameter dosage that No. 5 blanks are compared No. 4 blanks is compared No. 2 blanks than No. 3 blanks is little;
(7), utilize mechanical clamp to move to the die orifice of No. 6 moulds automatically No. 5 blanks, the tool that dashes by No. 6 moulds heads into No. 5 blanks in the die of No. 6 moulds, exert pressure dashing on the tool of No. 6 moulds, carry out cold extrusion shaped processing, make the hole diapire between first blind hole and second blind hole be transferred to the diameter that also slightly enlarges No. 5 blanks near the aperture of second blind hole forward, form No. 6 blank;
The increasing diameter dosage that the increasing diameter dosage that No. 6 blanks are compared No. 5 blanks is compared No. 2 blanks than No. 3 blanks is little;
(8), No. 6 blanks are utilized 180 ° of mechanical clamp upsets, move on to the die orifice of No. 7 moulds, the tool that dashes by No. 7 moulds heads into No. 6 blanks in the die of No. 7 moulds, to No. 6 blanks towards iron filings, get through first blind hole and second blind hole, the central through hole of cover and slightly enlarge the diameter of the diameter of No. 6 blanks in forming to interior cover, the increasing diameter dosage that the extensive magnitude of this diameter is compared No. 2 blanks than No. 3 blanks is little, and that overlaps in finishing is cold extrusion shaped.
Compared with the prior art, beneficial effect of the present invention is as follows:
(1), the present invention utilizes the cold-stamped method, utilize the principle of metal plastic deformation, at normal temperatures the metal in the extrusion die chamber is applied powerful pressure, make it from the gap of nib or concavo-convex mould, to extrude, under the prerequisite of not destroying metalline, make metal volume do plastic deformation;
(2), station is reasonable in design, 7 moulds 7 that utilize multistation moulding cold extrusion die are towards sharing resistance of deformation and the mould bearing capacity that produces in the product deformation process, can produce bigger, the complex-shaped oval lining of deflection accurately, and speed of production only can reach per minute 70-80;
(3), the present invention adopts the manufacturing of cold-stamped method, make the consumable quantity of blank decline to a great extent, stock utilization reaches 95%, and it is tightr to get materials microstructure through cold extrusion, tension, surrender, elongation, the every mechanical performance of impact all are better than machined, have guaranteed product quality.
Description of drawings
Fig. 1 is a process chart of the present invention, and wherein, the figure that is in the middle level is the front view of interior cover blank, and the figure that is in lower floor is the vertical view of interior cover blank, and the figure that is in the upper strata is the upward view of interior cover blank.
Fig. 2 is for removing the process chart of the drawing reference numeral increase blank change in size among Fig. 1.
The specific embodiment
With reference to accompanying drawing.Manufacturing process provided by the present invention is at first made steel billet materials and is coiled round material, carries out the phosphate surface treatment to coiling the circle material then, and essence is taken out sizing processing, and the round diameter of expecting of dish that essence is taken out behind the sizing is more smaller than the external diameter of interior cover, may further comprise the steps afterwards:
(1), dish circle material that essence is taken out behind the sizing delivers in the multi-station cold-heading molding machine drawing-inroller, cuts into single interior sleeve blank spare automatically by the blank mould;
(2), the interior sleeve blank spare that utilizes mechanical clamp to cut is delivered to No. 1 die orifice of multi-functional position cold-heading molding machine, the tool that dashes by No. 1 mould heads into the blank of interior cover in the die of this mould, exert pressure dashing on the tool of No. 1 mould, carrying out cold extrusion handles, front end 11 levelings with the blank of conical sleeve, bottom 12 flattens and extrudes lead angles in edge 13, forms No. 1 blank 1;
(3), No. 1 blank is utilized 180 ° of mechanical clamp upsets, move on to the die orifice of No. 2 moulds, the tool that dashes by No. 2 moulds heads into No. 1 blank in the die of No. 2 moulds, exert pressure dashing on the tool of No. 2 moulds, carry out cold extrusion shaped processing, No. 1 blank front end in No. 2 moulds is gone out first locating hole 21, the bottom is gone out second locating hole 22 and is extruded lead angles in edge 23, and slightly shorten the length of No. 1 blank and slightly enlarge the blank diameter No. 1, form No. 2 blank;
(4), utilize mechanical clamp to move to the die orifice of No. 3 moulds No. 2 blanks, the tool that dashes by No. 3 moulds heads into No. 2 blanks in the die of No. 3 moulds, exert pressure dashing on the tool of No. 3 moulds, carry out cold extrusion shaped processing, on the basis of described first locating hole, go out first blind hole 31, and prolong blank No. 2, make its length longer than No. 1 blank, the diameter of first blind hole 31 is consistent with the diameter of the central through hole of interior cover, slightly enlarge the blank diameter simultaneously No. 2, form No. 3 blank 3; The degree of depth of first blind hole arrives the middle part of No. 3 blanks;
The increasing diameter dosage that the increasing diameter dosage that No. 3 blanks are compared No. 2 blanks is compared No. 1 blank than No. 2 blanks is little;
(5), No. 3 blanks are utilized 180 ° of mechanical clamp upsets, move on to the die orifice of No. 4 moulds, the tool that dashes by No. 4 moulds heads into No. 3 blanks in the die of No. 4 moulds, exert pressure dashing on the tool of No. 4 moulds, carry out cold extrusion shaped processing, No. 3 blanks are gone out second blind hole 41 on the basis of described second locating hole 22, and slightly prolong the length of No. 3 blanks and increase the blank diameter No. 3, second blind hole 41 and first blind hole 31 are isometrical coaxial, hole diapire thick 42 between first blind hole 31 and second blind hole 41 satisfies towards the iron filings requirement, forms No. 4 blank 4;
The increasing diameter dosage that the increasing diameter dosage that No. 4 blanks are compared No. 3 blanks is compared No. 2 blanks than No. 3 blanks is little;
(6), utilize mechanical clamp to move to the die orifice of No. 5 moulds automatically No. 4 blanks, the tool that dashes by No. 5 moulds heads into No. 4 blanks in the die of No. 5 moulds, exert pressure dashing on the tool of No. 5 moulds, carry out cold extrusion shaped processing, the flat groove 51 at cover central through hole two ends in the oral area both sides of the oral area both sides of first blind hole of No. 4 blanks and second blind hole are gone out, and the length that slightly prolongs No. 4 blanks forms No. 5 blank to the length of interior cover and slightly enlarge the blank diameter No. 4;
The increasing diameter dosage that the increasing diameter dosage that No. 5 blanks are compared No. 4 blanks is compared No. 2 blanks than No. 3 blanks is little;
(7), utilize mechanical clamp to move to the die orifice of No. 6 moulds automatically No. 5 blanks, the tool that dashes by No. 6 moulds heads into No. 5 blanks in the die of No. 6 moulds, exert pressure dashing on the tool of No. 6 moulds, carry out cold extrusion shaped processing, make the hole diapire 42 between first blind hole and second blind hole be transferred to the diameter that also slightly enlarges No. 5 blanks near the aperture of second blind hole forward, form No. 6 blank 6;
The increasing diameter dosage that the increasing diameter dosage that No. 6 blanks are compared No. 5 blanks is compared No. 2 blanks than No. 3 blanks is little;
(8), No. 6 blanks are utilized 180 ° of mechanical clamp upsets, move on to the die orifice of No. 7 moulds, the tool that dashes by No. 7 moulds heads into No. 6 blanks in the die of No. 7 moulds, to No. 6 blanks towards iron filings, get through first blind hole and second blind hole, the central through hole 71 of cover and slightly enlarge the diameter of the diameter of No. 6 blanks in forming to interior cover, the increasing diameter dosage that the extensive magnitude of this diameter is compared No. 2 blanks than No. 3 blanks is little, overlap in finishing 7 cold extrusion shaped.
The diameter acquisition that the required metal transfer amount of enlarged-diameter of 7, No. 6 blanks of interior cover all can be omitted and enlarge first blind hole and second blind hole.

Claims (1)

1. the manufacturing process of cover in a kind, it is characterized in that: steel billet materials is made dish circle material, carry out the phosphate surface treatment to coiling the circle material then, essence is taken out sizing processing, and it is more smaller than the external diameter of interior cover that essence is taken out the diameter of the dish circle material behind the sizing, may further comprise the steps afterwards:
(1), dish circle material that essence is taken out behind the sizing delivers in the multi-station cold-heading molding machine drawing-inroller, cuts into single interior sleeve blank spare automatically by the blank mould;
(2), the interior sleeve blank spare that utilizes mechanical clamp to cut is delivered to No. 1 die orifice of multi-functional position cold-heading molding machine, the tool that dashes by No. 1 mould heads into the blank of interior cover in the die of this mould, exert pressure dashing on the tool of No. 1 mould, carrying out cold extrusion handles, front end leveling with the blank of interior cover, the bottom flattens and extrudes lead angle in edge, forms No. 1 blank;
(3), No. 1 blank is utilized 180 ° of mechanical clamp upsets, move on to the die orifice of No. 2 moulds, the tool that dashes by No. 2 moulds heads into No. 1 blank in the die of No. 2 moulds, exert pressure dashing on the tool of No. 2 moulds, carry out cold extrusion shaped processing, No. 1 blank front end in No. 2 moulds is gone out first locating hole, the bottom is gone out second locating hole and is extruded lead angle in edge, and slightly shorten the length of No. 1 blank and slightly enlarge the blank diameter No. 1, form No. 2 blank;
(4), utilize mechanical clamp to move to the die orifice of No. 3 moulds No. 2 blanks, the tool that dashes by No. 3 moulds heads into No. 2 blanks in the die of No. 3 moulds, exert pressure dashing on the tool of No. 3 moulds, carry out cold extrusion shaped processing, on the basis of described first locating hole, go out first blind hole, and prolong blank No. 2, make its length longer than No. 1 blank, the diameter of first blind hole is consistent with the diameter of the central through hole of interior cover, slightly enlarges the blank diameter simultaneously No. 2, forms No. 3 blank; The degree of depth of first blind hole arrives the middle part of No. 3 blanks;
The increasing diameter dosage that the increasing diameter dosage that No. 3 blanks are compared No. 2 blanks is compared No. 1 blank than No. 2 blanks is little;
(5), No. 3 blanks are utilized 180 ° of mechanical clamp upsets, move on to the die orifice of No. 4 moulds, the tool that dashes by No. 4 moulds heads into No. 3 blanks in the die of No. 4 moulds, exert pressure dashing on the tool of No. 4 moulds, carry out cold extrusion shaped processing, No. 3 blanks are gone out second blind hole on the basis of described second locating hole, and slightly prolong the length of No. 3 blanks and increase the blank diameter No. 3, second blind hole and first blind hole are isometrical coaxial, hole diapire between first blind hole and second blind hole is thick to be satisfied towards the iron filings requirement, forms No. 4 blank;
The increasing diameter dosage that the increasing diameter dosage that No. 4 blanks are compared No. 3 blanks is compared No. 2 blanks than No. 3 blanks is little;
(6), utilize mechanical clamp to move to the die orifice of No. 5 moulds automatically No. 4 blanks, the tool that dashes by No. 5 moulds heads into No. 4 blanks in the die of No. 5 moulds, exert pressure dashing on the tool of No. 5 moulds, carry out cold extrusion shaped processing, the flat groove at cover central through hole two ends in the oral area both sides of the oral area both sides of first blind hole of No. 4 blanks and second blind hole are gone out, and the length that slightly prolongs No. 4 blanks forms No. 5 blank to the length of interior cover and slightly enlarge the blank diameter No. 4;
The increasing diameter dosage that the increasing diameter dosage that No. 5 blanks are compared No. 4 blanks is compared No. 2 blanks than No. 3 blanks is little;
(7), utilize mechanical clamp to move to the die orifice of No. 6 moulds automatically No. 5 blanks, the tool that dashes by No. 6 moulds heads into No. 5 blanks in the die of No. 6 moulds, exert pressure dashing on the tool of No. 6 moulds, carry out cold extrusion shaped processing, make the hole diapire between first blind hole and second blind hole be transferred to the diameter that also slightly enlarges No. 5 blanks near the aperture of second blind hole forward, form No. 6 blank;
The increasing diameter dosage that the increasing diameter dosage that No. 6 blanks are compared No. 5 blanks is compared No. 2 blanks than No. 3 blanks is little;
(8), No. 6 blanks are utilized 180 ° of mechanical clamp upsets, move on to the die orifice of No. 7 moulds, the tool that dashes by No. 7 moulds heads into No. 6 blanks in the die of No. 7 moulds, to No. 6 blanks towards iron filings, get through first blind hole and second blind hole, the central through hole of cover and slightly enlarge the diameter of the diameter of No. 6 blanks in forming to interior cover, the increasing diameter dosage that the extensive magnitude of this diameter is compared No. 2 blanks than No. 3 blanks is little, and that overlaps in finishing is cold extrusion shaped.
CN201310132195.0A 2013-04-16 2013-04-16 Manufacture method of inner sleeve CN103212600B (en)

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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104493033A (en) * 2014-10-31 2015-04-08 西北有色金属研究院 Overall forming process of TC4 titanium alloy nozzle
CN106475505A (en) * 2015-08-25 2017-03-08 上海精拓模具制造有限公司 A kind of one-shot forming technique of the outer round belt groove product of employing Huff die cold-heading
CN107717345A (en) * 2017-09-29 2018-02-23 广州小出钢管有限公司 A kind of technique for generating steel pipe of the both ends of the surface with below 0.5MM chamferings
CN108422155A (en) * 2018-02-26 2018-08-21 乐清市强特紧固件制造有限公司 A kind of processing technology being exclusively used in hollow nut
CN108543823A (en) * 2018-03-19 2018-09-18 江苏海宇机械有限公司 A kind of long size beam barrel Bidirectional-squeezing manufacturing process and shaping dies
CN109226655A (en) * 2018-10-26 2019-01-18 广州小出钢管有限公司 A kind of processing method of the automobile shock flat recess with tooth flanged pipe
CN109226654A (en) * 2018-10-26 2019-01-18 广州小出钢管有限公司 A kind of processing method of the automobile shock flat recess with tooth pipe
CN109894568A (en) * 2019-03-08 2019-06-18 宁波安拓实业有限公司 The automobile chassis welding manufacturing method of casing
CN110538953A (en) * 2019-08-26 2019-12-06 上海华鞍汽车配件有限公司 Cold heading one-step forming process for automotive multi-step bushing

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DE3113207A1 (en) * 1981-04-02 1982-10-14 Buedinger Metallwarenfabrik Gm Method for producing a connection part for inlet and outlet lines of flat radiators
US6151777A (en) * 1997-10-14 2000-11-28 Okawa Screw Manufacturing Co., Ltd. Method of manufacturing a blank raw material for a hose end fitting
CN101579803A (en) * 2009-06-23 2009-11-18 宁波安拓实业有限公司 Manufacturing technology of braking cone
CN101607273A (en) * 2009-07-23 2009-12-23 宁波安拓实业有限公司 The multistation cold extrusion forming method of extruded sleeve
CN101618421A (en) * 2009-07-17 2010-01-06 宁波安拓实业有限公司 Multi-station cold-heading molding method of clutch conical blank
CN102125943A (en) * 2010-11-29 2011-07-20 宁波安拓实业有限公司 Manufacturing process of hose coupling
CN102699632A (en) * 2012-06-04 2012-10-03 宁波安拓实业有限公司 Process for manufacturing lining blank of damper
CN103028626A (en) * 2012-12-24 2013-04-10 宁波安拓实业有限公司 Manufacture process of elliptic lining

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DE3113207A1 (en) * 1981-04-02 1982-10-14 Buedinger Metallwarenfabrik Gm Method for producing a connection part for inlet and outlet lines of flat radiators
US6151777A (en) * 1997-10-14 2000-11-28 Okawa Screw Manufacturing Co., Ltd. Method of manufacturing a blank raw material for a hose end fitting
CN101579803A (en) * 2009-06-23 2009-11-18 宁波安拓实业有限公司 Manufacturing technology of braking cone
CN101618421A (en) * 2009-07-17 2010-01-06 宁波安拓实业有限公司 Multi-station cold-heading molding method of clutch conical blank
CN101607273A (en) * 2009-07-23 2009-12-23 宁波安拓实业有限公司 The multistation cold extrusion forming method of extruded sleeve
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Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104493033A (en) * 2014-10-31 2015-04-08 西北有色金属研究院 Overall forming process of TC4 titanium alloy nozzle
CN104493033B (en) * 2014-10-31 2016-08-17 西北有色金属研究院 A kind of integral forming technique of TC4 titanium alloy jet pipe
CN106475505A (en) * 2015-08-25 2017-03-08 上海精拓模具制造有限公司 A kind of one-shot forming technique of the outer round belt groove product of employing Huff die cold-heading
CN107717345A (en) * 2017-09-29 2018-02-23 广州小出钢管有限公司 A kind of technique for generating steel pipe of the both ends of the surface with below 0.5MM chamferings
CN108422155A (en) * 2018-02-26 2018-08-21 乐清市强特紧固件制造有限公司 A kind of processing technology being exclusively used in hollow nut
CN108543823A (en) * 2018-03-19 2018-09-18 江苏海宇机械有限公司 A kind of long size beam barrel Bidirectional-squeezing manufacturing process and shaping dies
CN109226655A (en) * 2018-10-26 2019-01-18 广州小出钢管有限公司 A kind of processing method of the automobile shock flat recess with tooth flanged pipe
CN109226654A (en) * 2018-10-26 2019-01-18 广州小出钢管有限公司 A kind of processing method of the automobile shock flat recess with tooth pipe
CN109894568A (en) * 2019-03-08 2019-06-18 宁波安拓实业有限公司 The automobile chassis welding manufacturing method of casing
CN109894568B (en) * 2019-03-08 2020-04-14 宁波安拓实业有限公司 Manufacturing method of sleeve for welding automobile chassis
CN110538953A (en) * 2019-08-26 2019-12-06 上海华鞍汽车配件有限公司 Cold heading one-step forming process for automotive multi-step bushing
CN110538953B (en) * 2019-08-26 2021-01-05 上海华鞍汽车配件有限公司 Cold heading one-step forming process for automotive multi-step bushing

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